CN204591741U - Electric heater alarm circuit for failure of fan used for rail vehicle - Google Patents
Electric heater alarm circuit for failure of fan used for rail vehicle Download PDFInfo
- Publication number
- CN204591741U CN204591741U CN201520029234.9U CN201520029234U CN204591741U CN 204591741 U CN204591741 U CN 204591741U CN 201520029234 U CN201520029234 U CN 201520029234U CN 204591741 U CN204591741 U CN 204591741U
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- fan
- control unit
- chip microcomputer
- electricity federation
- failure
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Abstract
The utility model relates to a kind of electric heater alarm circuit for failure of fan used for rail vehicle, comprises fan electromotor, Detecting element, control unit and alarm unit; Described fan electromotor forms Electricity Federation with Detecting element and control unit respectively, and described detection unit and control unit form Electricity Federation, and described control unit and alarm unit form Electricity Federation; Detection mode of operation of fan and failure alarm circuit achieve the working state by judging blower fan to the detection of fan electromotor operating current: overcurrent, undercurrent or blower fan are opened a way, by judging that working state realizes the protective function of equipment.
Description
Technical field
The utility model relates to a kind of electric heater alarm circuit for failure of fan used for rail vehicle.
Background technique
Electric heater is arranged on below train seat, higher to the surface temperature requirements of electric heater, if radiation fan breaks down, (stall, power reduction are even opened a way) can cause the surface temperature of electric heater to raise scald passenger.
Model utility content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, provides a kind of electric heater alarm circuit for failure of fan used for rail vehicle.
The utility model solves the technological scheme that its technical problem adopts: a kind of electric heater alarm circuit for failure of fan used for rail vehicle, comprises fan electromotor, Detecting element, control unit and alarm unit; Described fan electromotor forms Electricity Federation with Detecting element and control unit respectively, and described detection unit and control unit form Electricity Federation, and described control unit and alarm unit form Electricity Federation;
Described Detecting element is for detecting the electric current of fan electromotor, and described control unit is used for comparing the magnitude of voltage detected of Detecting element and controlling alarm unit work by control unit.
Further, described Detecting element is sensor, and described control unit comprises single-chip microcomputer and fan drive circuit, described sensor respectively with fan drive circuit and single-chip microcomputer Electricity Federation, described fan drive circuit and fan electromotor Electricity Federation, described single-chip microcomputer and alarm unit Electricity Federation;
Described sensor carries out operating current detection to fan electromotor, and the operating current of detection is converted to voltage reaches single-chip microcomputer, sensor detecting work voltage compares with preset voltage value by described single-chip microcomputer, send command adapted thereto information by single-chip microcomputer to fan drive circuit, described fan drive circuit controls fan electromotor work.
Further, described single-chip microcomputer is PIC single chip microcomputer.
Further, described sensor is Hall transducer.
The beneficial effects of the utility model are: detection mode of operation of fan and failure alarm circuit achieve the working state by judging blower fan to the detection of fan electromotor operating current: overcurrent, undercurrent or blower fan are opened a way, by judging that working state realizes the protective function of equipment;
Compact structure of the present invention simultaneously, testing precision is high, and testing cost is low, and wide accommodation is safe and reliable.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Fig. 1 is the schematic diagram of the utility model warning circuit;
Wherein: 1, fan electromotor, 2, sensor, 3, control unit, 31, fan drive circuit, 32, PIC single chip microcomputer.
Embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figure 1, a kind of electric heater alarm circuit for failure of fan used for rail vehicle, comprises fan electromotor 1, Detecting element, control unit 3 and alarm unit; Fan electromotor 1 forms Electricity Federation with Detecting element and control unit 3 respectively, and detection unit and control unit 3 form Electricity Federation, and control unit 3 and alarm unit form Electricity Federation.
Detecting element is for detecting the electric current of fan electromotor 1, and control unit 3 is for comparing the magnitude of voltage detected of Detecting element and controlling alarm unit work by control unit 3.
In the present embodiment, Detecting element is sensor 2, and sensor 2 is Hall transducer.Control unit 3 comprises single-chip microcomputer and fan drive circuit 31, and single-chip microcomputer is PIC single chip microcomputer 32.Sensor 2 respectively with fan drive circuit 31 and single-chip microcomputer Electricity Federation, fan drive circuit 31 and fan electromotor 1 Electricity Federation, single-chip microcomputer and alarm unit Electricity Federation.Fan drive circuit 31 controls fan electromotor 1 working condition.
Sensor 2 pairs of fan electromotors 1 carry out operating current detection, and the operating current of detection is converted to voltage reaches single-chip microcomputer, sensor 2 testing voltage compares with preset voltage value by single-chip microcomputer, when single-chip microcomputer by compare find the operating voltage detected exceed or lower than the voltage range preset time, single-chip microcomputer sends corresponding command information to fan drive circuit 31 according to the structure of judgement and whether sends malfunction coefficient information.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.
Claims (4)
1. an electric heater alarm circuit for failure of fan used for rail vehicle, is characterized in that, comprises fan electromotor (1), Detecting element, control unit (3) and alarm unit; Described fan electromotor (1) forms Electricity Federation with Detecting element and control unit (3) respectively, and described detection unit and control unit (3) form Electricity Federation, and described control unit (3) and alarm unit form Electricity Federation;
Described Detecting element is for detecting the electric current of fan electromotor (1), and described control unit (3) is for comparing the magnitude of voltage detected of Detecting element and controlling alarm unit work by control unit (3).
2. electric heater alarm circuit for failure of fan used for rail vehicle according to claim 1, it is characterized in that, described Detecting element is sensor (2), described control unit (3) comprises single-chip microcomputer and fan drive circuit (31), described sensor (2) respectively with fan drive circuit (31) and single-chip microcomputer Electricity Federation, described fan drive circuit (31) and fan electromotor (1) Electricity Federation, described single-chip microcomputer and alarm unit Electricity Federation;
Described sensor (2) carries out operating current detection to fan electromotor (1), and the operating current of detection is converted to voltage reaches single-chip microcomputer, sensor (2) testing voltage compares with preset voltage value by described single-chip microcomputer, send command adapted thereto information by single-chip microcomputer to fan drive circuit (31), described fan drive circuit (31) controls fan electromotor (1) work.
3. electric heater alarm circuit for failure of fan used for rail vehicle according to claim 2, is characterized in that, described single-chip microcomputer is PIC single chip microcomputer (32).
4. electric heater alarm circuit for failure of fan used for rail vehicle according to claim 2, is characterized in that, described sensor (2) is Hall transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520029234.9U CN204591741U (en) | 2015-01-15 | 2015-01-15 | Electric heater alarm circuit for failure of fan used for rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520029234.9U CN204591741U (en) | 2015-01-15 | 2015-01-15 | Electric heater alarm circuit for failure of fan used for rail vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204591741U true CN204591741U (en) | 2015-08-26 |
Family
ID=53927900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520029234.9U Active CN204591741U (en) | 2015-01-15 | 2015-01-15 | Electric heater alarm circuit for failure of fan used for rail vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204591741U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157237A (en) * | 2015-09-15 | 2015-12-16 | 广东美的暖通设备有限公司 | Heater control method and control device |
| CN110045222A (en) * | 2019-05-07 | 2019-07-23 | 上海禹点电子科技有限公司 | A kind of method for diagnosing faults of fan driving stage |
| CN114137347A (en) * | 2021-11-26 | 2022-03-04 | 北京经纬恒润科技股份有限公司 | Fault diagnosis method, calibration method and device for heat dissipation system |
-
2015
- 2015-01-15 CN CN201520029234.9U patent/CN204591741U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157237A (en) * | 2015-09-15 | 2015-12-16 | 广东美的暖通设备有限公司 | Heater control method and control device |
| CN105157237B (en) * | 2015-09-15 | 2019-03-08 | 广东美的暖通设备有限公司 | The control method and control device of heater |
| CN110045222A (en) * | 2019-05-07 | 2019-07-23 | 上海禹点电子科技有限公司 | A kind of method for diagnosing faults of fan driving stage |
| CN110045222B (en) * | 2019-05-07 | 2021-08-10 | 上海禹点电子科技有限公司 | Fault diagnosis method for fan driving stage |
| CN114137347A (en) * | 2021-11-26 | 2022-03-04 | 北京经纬恒润科技股份有限公司 | Fault diagnosis method, calibration method and device for heat dissipation system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |